Grain-drying device



June 24, 1930. J, AMPBELL 1,766,742

GRAIN DRYING DEVICE Filed Sept. 25. 1929 w m 2 20 f I 2' //9 5 9 9 7 I I 7 4 Patented June 24, 19:30 I

at e-S A JOSEPH;CAMPBELL, orMILNnn; nn'rrrsn' ooI UMBng'cnnAnA RAIN-Danna n nvroln' V Application filed Septeniber23', 192e, Seria1 Noil3 94,6;1 6, and in Canada zrul flzo, 1929.

This invention relates to a' grain drying device more particularly for use by farmers but equally applicable in other and more generaldirections. p 1

ts objectis to improve the average uality of stored grain and alsoincidental y to "prevent possible deterioration arising. on account of enclosed moisture in any particular portion of the mass and especially in the 10 lower strata of'grain while in storage."

' It is obvious that a quantity .of stored grain presents'in the mass a cellular formation due to the innumerable contiguous interstices all more or less connected and forming-an attenuated atmospheric path.

This condition I takeadvantage'of to pass through the massga-largenumber of jets of dryair by means. of a perforated pipe device of convenientform which is more clearcompanying and forming a part of this application, and in which:

"sition ina grain. storage bin such as might befound on any farm premises.

, Figure 2 is a vertical cross section of Figure 1 but showing 1 the perforated pipes raised to the vertical position for the purpose of emptying. and cleaning the bin, and Figure 3 is a transverse vertical section showing the perforated low the stored grain.

Figure 4 is an enlarged detail of-theintake end ofthe main air pipe. 1 T

the wall or floor Ora grain bin as frequently constructed of stout timber; 5 is a pipe connecting with a source of dry air delivered" under suitable pressure.

The device is conveniently constructed of.

Into each T piece 6 is screwed a length of pipe 9 capped at its extremity 10 andJper-i forated as shown at 11. 4 The pipes 9 arearranged tolie on the floor of the bin as shown, and are adapted to pivot at the screwthread joint 12 there at that part.

as indicated at 13', and J to the system ofpipeworkthroughthe pipe ly described by the aid of the drawings ac fillsxevery' requirement. Figure 1 is a plan of the apparatus in popipes in position be in these drawings the numeral 4 indicates being. no necessity for a pressure-tight joint Grain isifilledinto the bin above thepipes dry airis conveyed TBS EI T [OFFICE connection 5 under a suitable pressure whereby i it is adapted to impinge the floor ofthe bin by numerous jets and thence to gradm ially percolateupwards through thegmass'of grain to escape at its upper surface, carrya 111g with itl'all the moisturejwithin'the mass 7 whichit can absorb in transit and thereby leaving thel enti re quantity'offigrain in'anj equablehy groscopic condition with a minimum of included moisture nieasurably I d e- *p'endent'gon the state of the air passed "tlirollgllitg*f T I Theaevia in its simplaaam permits the lifting of any undivided pivotal perforated pipe for clearing purposes and for the purpose'of the smaller'cla'ss of farmersthis'ful- Should 't be desired in the case of larger installations to simultaneously raise the per- I forated pipes simple meansfor effecting this are indicated in the 'drawings where the crank bar, 14 passing below the perforated pipes andconnected tothe shortcrank shaft 15 andthe hand crank 16 is. supp'ortedat' the jendj 17f by; a loop-at '18 'ar0undthe tributing simultaneously by the crank bar 14.

Having now fully described my inven- I tion, I hereby declare that what I claim and desire to be protected in by Letters Patent, is:

1. A grain drying device-in combination with a grain storage bin comprising, a main distributing pipe consisting of a 'consecutive series of T-shaped pipe connectors united, bynipples ofthe nature'of short lengths of pipe to form a main supply member, each said connector being movable about the axis of said main pipe, pipes having a series of, small perforations spaced-f" apart and extending throughout their" lengths one of said pipes being secured to each said branch connector and movable with it, whereby a series of pipes disposed in parallelism is made available, said main pipe being connected to a source of dry air underpressllre,whereby the fioorsurface of said ubinmay be impinged by a numerous series of spaced a1r Jets and numerous an by nipples-of ,the-Lnature of shortlengths of currents distributed amongst the stored grain to pencolate through :.it and absorb the moisture enclosed therein and whereby said perforated pipes may be "pi-totally raisedfrom the horizontal floor surface to the Vertical for the purpose of clearingthe said bill. v

2. A grain drying device in combination. it

with ,a grain :storage'ibill comprising, a main distributlng pipe; cons sting of aconsecutive series-o1": T shaped pipeuconuectors united pipeto form a main supply member, each said connectonbeing movableabout the {axis ofsaid mainpipe, pipes havingal'seriesof small perforatlons spaced vapart and-extending throughout their lengths one +015 said pipes being secured to each rsaid branch connector and movable with it, whereby :a eries of p p di$p d paralle i is m d availabl Qsa f im m p p' ibei'ng connected to asource of dry ,air -,under pressure, whereby the floor surface o f -sa id bin im ayzbe .implnged by :a numerous series of 1 spaced a r gets and numerous ,alrcurrents vdistributed amongst thev-storedgrainatoper- 7 colate through ittand absorb the moisture V enclosed therein and whereby said perforated pipes-may be piyotallyraiscd from the horizontal floor surface ,to the vertical for p the purpose o'f clearing ,the said bin, and means for simultaneously raisingqandv lowering the said gmovableperforated pipes :from the horizontal {to the vertical position: and -v1ce versa. 1 t

' ln testimony whereof Iaflix my signature.

. V ,JOSEPH CAMPBELL. 

